On 1 January, she debuted her second 2D costume, a new year kimono during a stream, along with her new hairstyle, she can choose to wear cat ears and tail, her mascot Daifuku also received a change as Daifuku is inside a bowl instead of the usual pot.
On 4 January, hololive's official Twitter account teased a future announcement regarding three of the four members of hololive fifth generation.
On 20 January, Lamy announced on her Twitter account that she would get her 3D model.
On 24 January, she debuted her 3D model during a stream with more than 90,000 live viewers becoming the third member of her generation to get hers. On the same day, she also reached 500,000 YouTube subscribers, making her the 29th hololive member to reach this milestone.
On 1 April, she reached 600,000 YouTube subscribers during a Ring Fit Adventure stream.
On 12 June, she reached 700,000 YouTube subscribers.
On 1 September, hololive's Japanese Twitter account announced that Lamy and Botan would receive their third 2D costumes. On the same day she reached 800,000 YouTube subscribers.
On 2 September Lamy debuted her third 2D model, in this costume Lamy has two hairstyle options, the first one is similar in style to her original however she has two small pigtails decorated with black ribbons and decorative snowflakes. In this costume, she wears a white blouse accompanied by a plaid brown dress, which is decorated by a black ribbon, as well as two small crystal-like buttons with the same design as her necklace and the pattern present in her skirt. Lamy uses black socks and white shoes. Lamy can also use cat ears, a white sweater and hold a white Yukimin plushie.
On 25 September in celebration of the fifth generation first anniversary, Lamy got a new hairstyle using a ponytail tied up with a black ribbon in one site of the ribbon there is a small accessory that consist of four hearts in different colors fuchsia, yellow, light blue and green that are put together, on her right side she uses crossed hairpins with the same colors, fuchsia combined with yellow and light blue combined with green, in her ponytail Lamy has some lights with these colors as well.
On 12 November, Lamy debuted new accessories for her kimono outfit. She got a new hairstyle using loose hair, on the left side she wear a hairpin shaped like a small bottle with a crescent moon, on top of her kimono she wears a pink with a sakura pattern that matches her skirt. Lamy can now also move her arm to hold an Ochoko cup.
On 15 November, Lamy debuted her first original song "Asu e no kyōkai-sen."
On 16 November, Lamy debuted a game controller accessory for her third 2D costume. Yukimin also got new expressions.
On 22 November, Lamy debuted a game controller accessory for her main 2D model, and she can take off her coat.
On 23 December, Lamy debuted new accessories for her third 2D model, a Santa hat and bread.
On 27 December, Lamy reached 900,000 YouTube subscribers.